If you're registered for VAT then you will need to submit VAT returns.
When you need to submit them depends on what scheme you are on - annual , monthly or standard (quarterly).
VAT can get horrendously complicated but with the right accounting software, set up in the right way, you can ease this burden (please don't attempt to account for VAT without decent software - its too easy to make costly mistakes).
The Accounting Studio are happy to help you with your VAT returns, and if you've signed up for our amazing Tax Advisory Package we can also help you chose which VAT scheme you should be on to lower your VAT or reduce your administrative burden.
Our VAT service can be bolted on to any Core Service Package that you chose.